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The Grand Prismatic Spring in Yellowstone National Park viewed from the southeast hillside, its vivid blue center ringed by orange and yellow microbial mats and rising steam, set against the surrounding forest and sky.

National Park · Wyoming

Yellowstone

The world's first national park: geysers, canyons, and the densest wildlife show in the Lower 48.

Lucas·G via Wikimedia Commons (CC BY-SA 4.0)
Steam rising from Grand Prismatic Spring and its orange microbial mats

Field briefing

Yellowstone changes fast with season and elevation.

Before you go

Yellowstone is a high-elevation wonderland of geysers, canyons, and wildlife that demands flexibility and warm layers no matter the month.

Summer (July-August) is the sweet spot for full road and trail access, but it is also peak crowds, so go early or late in the day and book lodging months ahead. Spring and fall trade some access for thinner crowds and great wildlife viewing, while winter turns the park into a snowcoach-and-skis adventure. Whenever you come, pack for cold mornings even in summer, carry bear spray on trails, and never approach wildlife.

Best window
July and August
Signature routes
Grand Prismatic Spring, Old Faithful
Pack focus
Water, weather checks, layers

The landmarks worth the trip. Tap any photo to enlarge.

Location
Wyoming
Established
March 1, 1872
Size
2.2M acres
Visitors
4.7M / year
Best time
July and August
Entrance
$35 per private vehicle for 7 days ($30 motorcycle, $20 per person on foot or bike). No timed-entry reservation required. America the Beautiful annual pass $80.
Nearest airport
Bozeman Yellowstone International (BZN), about 1.5 hours from the North Entrance and 2 hours from the West Entrance

When to go

Conditions, crowds, and what each season asks you to pack.

Spring

40-60F

Moderate crowds

Highs 40-60F, snow lingers and roads open in stages from mid-April through May

Pack Waterproof boots and layers for mud, snow, and bear-country awareness as animals emerge.

Summer

70-80F

Peak crowds

Highs 70-80F by day, dropping to 30-40F at night at elevation

Pack Sun protection, a warm layer for cold mornings, and plenty of water for long days.

Fall

40-60F

Moderate crowds

Highs 40-60F, cold nights and possible early snow by late September

Pack Insulated layers and rain shell for crisp, unpredictable days during the elk rut.

Winter

20F

Low crowds

Highs 0-20F, frequent sub-zero nights and deep snow

Pack Serious cold-weather gear: insulated boots, base layers, and traction for ice.

Lower Falls and the pale walls of the Grand Canyon of the Yellowstone

Top things to do

Grand Prismatic Spring surrounded by colorful microbial mats

Grand Prismatic Spring

Overlook trailEasy

The park's iconic rainbow hot spring; the overlook trail off Fairy Falls gives the best aerial-style view.

Old Faithful geyser erupting in the Upper Geyser Basin

Old Faithful

Boardwalk areaEasy

The most predictable big geyser on Earth, erupting roughly every 90 minutes near the historic inn.

Lower Falls in the Grand Canyon of the Yellowstone

Grand Canyon of the Yellowstone

Roadside overlooksEasy

A 1,000-foot-deep gorge with Upper and Lower Falls, best seen from Artist Point.

The Lamar River meandering through open Yellowstone grassland

Lamar Valley

Scenic wildlife driveEasy

The Serengeti of North America: bison herds, wolves, and bears, especially at dawn and dusk.

Mount Washburn Trail climbing a ridgeline above forest

Mount Washburn Trail

About 6 miHard

A roughly 6-mile round-trip climb to a fire lookout with sweeping high-country views and summer wildflowers.

How long to spend

Anchor the day around Grand Prismatic Spring

Put the access rule first: shuttle, parking, timed-entry, or reservation windows should decide the order of the day. For one day in Yellowstone, make Grand Prismatic Spring the non-negotiable, add Old Faithful only if the first stop runs clean, and keep Grand Canyon of the Yellowstone as the flexible finish.

  1. 1Start with Grand Prismatic Spring: The park's iconic rainbow hot spring; the overlook trail off Fairy Falls gives the best aerial-style view.
  2. 2Add Old Faithful: The most predictable big geyser on Earth, erupting roughly every 90 minutes near the historic inn.
  3. 3Use Grand Canyon of the Yellowstone as the optional finish, not as a reason to rush the whole day.

Plan your trip

Turn Yellowstone's conditions into water, pack, and sleep-system decisions.

Lower Falls dropping into the Grand Canyon of the Yellowstone

Build around conditions

Let season, elevation, and weather set the plan.

Plan your trip

4 quick tools, already seeded for Yellowstone. Tune the numbers around temperature swings, footing, layers, and how much margin the route needs.

  1. 01Size your water for a warm day on the trail
  2. 02Dial in your pack base weight before you load up
  3. 03Find the pack size a multi-day trip here needs
  4. 04Check you will sleep warm down to about 20F

What to pack

Start with the gear decisions Yellowstone changes: water, footing, weather, and overnight needs. The checklist is there once your route and dates are set.

Pack planning

Decide what Yellowstone asks of your kit before you start checking boxes.

Use this as a constraint check while you are still shaping the trip. The active checklist becomes useful once your route, dates, and sleep plan are set.

  • First constraintHydration and exposureWater, hat, sunscreen, sunglasses, Navigationmap, downloaded GPS, or a GPS watch, 3 more
  • Route realityFooting and tractionHiking boots, Hiking socks, Trekking poles
  • Load choicePack and carry systemBackpacking pack
  • If overnightSleep and shelterBackpacking tent, Sleeping bag, Sleeping pad, 1 more

Checklist mode

21 items, grouped for the trip you are actually taking.

  1. Dates and season are set.
  2. Primary route, campground, or lodge is chosen.
  3. Water, footwear, and overnight needs are sized.

Gear for Yellowstone

The buying guides that match what Yellowstone asks of your kit. Each one has our current top picks across budget and use case.

Where to stay

Lower Falls in the Grand Canyon of the Yellowstone

Stay strategy

Choose the base before reservations narrow.

Stay strategy

Match the lodging zone to the loop section, not the park name.

Yellowstone is too large for one perfect base. Old Faithful or West Yellowstone works best for geyser basins, Canyon or Lake shortens waterfall and Hayden Valley days, and Gardiner or Cooke City makes the northern wildlife corridor more realistic.

Best first-trip strategy
Split nights between geyser country and Canyon or Lake
In-park lodging
Multiple seasonal lodge areas, book far ahead
Gateway towns
West Yellowstone, Gardiner, Cooke City, Cody, and Jackson by route
Road season
Most park roads are seasonal outside the north corridor

Compare base options

Old Faithful area or West Yellowstone is the first base to test against your route. Compare the alternatives by morning friction, reservation risk, and drive time.

Old Faithful erupting in the Upper Geyser Basin

Geyser base

Old Faithful area or West Yellowstone

Lodging
Best for
Old Faithful, Grand Prismatic, Upper Geyser Basin, and first-time hydrothermal days
Tradeoff
Longer drives to Lamar Valley and the north side.
Planning detail

Use this zone when geysers are the center of the trip. In-park rooms save drive time; West Yellowstone gives more services and often more lodging inventory.

Yellowstone Lake shore with mountains in the distance

Canyon and lake

Canyon Village, Lake, or Fishing Bridge

Campgrounds
Best for
Grand Canyon of the Yellowstone, Hayden Valley, Yellowstone Lake, and a balanced loop route
Tradeoff
Less convenient for Old Faithful if you are doing geyser-heavy days.
Planning detail

This is the best middle-of-park strategy for a second or third night. It reduces backtracking between waterfalls, wildlife drives, and lake stops.

Lamar Valley grassland and river corridor

Wildlife corridor

Gardiner, Mammoth, or Cooke City

Road conditions
Best for
Lamar Valley, Mammoth, early wildlife drives, and north entrance access
Tradeoff
Very long days to Old Faithful and the southwest geyser basins.
Planning detail

Choose the north when wildlife is the point. Gardiner and Mammoth work for the west side of the north loop; Cooke City is closest to Lamar but more seasonal and limited.

Split nights

For a full first visit, two lodging zones beat one central fantasy base.

Start early

Popular boardwalks and wildlife pullouts reward dawn starts more than almost any other park in this batch.

Camping reservations

Camping reservations

Camping reservations for Yellowstone

Campground systems change by season and sometimes by individual campground. Start with the official park camping page, then confirm open dates, reservation windows, and permit rules before booking.

Reviewed June 6, 2026

Booking window

Check the official park camping page before choosing dates.

  • Use the official park page as the source of truth for campground status, seasonal closures, and first-come rules.
  • Many federal campsite, backcountry, tour, and permit reservations are handled through Recreation.gov, but not every park uses the same system.

Where to book or verify

Official NPS camping page

Use this first for current campground status and park-specific rules.

Search Recreation.gov

Check for federal campground, backcountry, tour, and permit inventory tied to this park.

Permits and reservations

Use this for wilderness permits, timed systems, tours, and other park-specific reservations.

Getting there and practical info

Lower Falls and the pale walls of the Grand Canyon of the Yellowstone

Treat the vehicle plan as part of the itinerary.

Road distance, road surface, fuel, and daylight can matter as much as the final trail or viewpoint.

Getting there

Get to Yellowstone, then make the road plan honest.

Nearest airport
Bozeman Yellowstone International (BZN), about 1.5 hours from the North Entrance and 2 hours from the West Entrance
Access rhythm
Car required
Region
Wyoming
  1. Fly in

    Most visitors fly into Bozeman Yellowstone International (BZN) in Montana, about 1.5 hours from the North Entrance and 2 hours from the West Entrance, then rent a car.

  2. Fly in

    Jackson Hole Airport (JAC) sits inside Grand Teton and is roughly 1 to 1.5 hours from the South Entrance, ideal if you are combining both parks.

  3. Fly in

    Yellowstone Regional Airport in Cody (COD) is about 1 hour 20 minutes from the East Entrance, and the seasonal West Yellowstone Airport (WYS) is minutes from the West Entrance but only operates June through September.

Pair this with lodging: the closest bed is not always the simplest one if road time, road quality, or fuel stops dominate.

LocationWyoming

Frequently asked questions

Do I need a reservation to enter Yellowstone?

No. Yellowstone does not require a timed-entry or vehicle reservation to get in, so you can drive up and pay at the gate. You do need an entrance pass, which is $35 per private vehicle for seven days. Lodging and campsites inside the park, however, fill up months ahead for summer, so book those early.

When is the best time to visit Yellowstone?

July and August offer the warmest weather and full access to roads and trails, but they are also the most crowded. Late spring (May to early June) and fall (September) bring thinner crowds, excellent wildlife viewing, and cooler temperatures, though some facilities and roads may be limited. Winter is a quiet, snowbound experience reached mainly by snowcoach or guided snowmobile.

How many days do you need in Yellowstone?

Plan for at least three to four days to see the highlights without rushing. The park is huge, and driving the full Grand Loop Road between Old Faithful, the Grand Canyon of the Yellowstone, and Lamar Valley eats up hours each day. If you want to hike or watch wildlife at dawn, five days is more comfortable.

Is Yellowstone safe around wildlife?

Yellowstone is grizzly and black bear country, and bison injure more people than any other animal here. Stay at least 100 yards from bears and wolves and 25 yards from bison and elk, never feed animals, and carry bear spray on trails and know how to use it. Most incidents happen when visitors get too close for a photo, so give every animal plenty of room.

Keep planning